Comparison of Pedotransfer Functions for Determination of Saturated Hydraulic Conductivity for Highly Eroded Loess Soil

Agnieszka Petryk (), Edyta Kruk, Marek Ryczek and Lenka Lackóová
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Agnieszka Petryk: Department of Urban Management, Institute of Spatial Management and City Studies, College of Public Economy and Administration, Cracow University of Economics, Rakowicka 27 St, 31-510 Kraków, Poland
Edyta Kruk: Department of Land Reclamation and Environmental Development, Faculty of Environmental Engineering and Land Surveying, Agriculture University of Krakow, Mickiewicza 24/28 St, 30-059 Krakow, Poland
Marek Ryczek: Department of Land Reclamation and Environmental Development, Faculty of Environmental Engineering and Land Surveying, Agriculture University of Krakow, Mickiewicza 24/28 St, 30-059 Krakow, Poland
Lenka Lackóová: Institute of Landscape Engineering, Faculty of Horticulture and Landscape Engineering, Slovak University of Agriculture in Nitra, Hospodárska, 794901 Nitra, Slovakia

Land, 2023, vol. 12, issue 3, 1-13

Abstract: Saturated hydraulic conductivity is one of the most essential soil parameters, influencing surface runoff and water erosion formation. Both field and laboratory methods of measurement of this property are time or cost-consuming. On the other hand, empirical methods are very easy, quick and costless. The aim of the work was to compare 15 pedotransfer models and determination of their usefulness for assessment of saturated hydraulic conductivity for highly eroded loess soil. The mean values obtained by use of the analyzed functions highly fluctuated between 2.00·10 −3 and 4.05·10 0 m·day −1 . The results of calculations were compared within them and with the values obtained by the field method. The function that was the best comparable with the field method were the ones proposed by Kazeny-Carman, based on void ratio and specific area, and by Zauuerbrej, based on total porosity and effective diameter d 20 . In turn, the functions that completely differed with the field method were the ones proposed by Seelheim, based on effective diameter d 50 and by Furnival and Wilson, based on bulk density, organic matter, clay and silt content. The obtained results are very important for analysis among others water erosion on loess soil.

Keywords: saturated hydraulic conductivity; pedotransfer functions; loess soil (search for similar items in EconPapers)
JEL-codes: Q15 Q2 Q24 Q28 Q5 R14 R52 (search for similar items in EconPapers)
Date: 2023
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